Boca Research None Manuale Utente

 
This manual describes the liquid handling system and the in situ sample cell as used 
on the DEVA instrument with the “RF” spectrometer, for either normal muon spins 
relaxation or RF resonance experiments. 
 

 
The Muon Liquid Handling System has been designed to facilitate the in situ 
degassing and transfer of samples into and out of the sample cell.  The main features 
of the liquid handling system are shown in Figure 1. 
 
 

 

Inlet 1 

Inlet 2

Gas 
pressure

Cell 
pressure 

To pump 

To cell 

Baratron 

Vessel 2

Vessel 1 

Vessel 3 

 
 

Figure 1  The layout of the front panel on the muon liquid handling system. 

 
 
In general, the rig consists of three glass vessels for the storage of liquid samples, any 
of which can be opened to a vacuum for the purposes of degassing by the freeze-
pump-thaw method.  Once degassed, the sample liquid can be transferred to the 
sample cell contained within a cryostat without further exposure to the air.  In 
addition, samples may be returned to the rig for further freeze-pump-thaw cycles or 
for disposal. 
 

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